IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0294265
(2007-03-14)
|
등록번호 |
US-8267226
(2012-09-18)
|
우선권정보 |
GB-0605844.0 (2006-03-24) |
국제출원번호 |
PCT/GB2007/000769
(2007-03-14)
|
§371/§102 date |
20090521
(20090521)
|
국제공개번호 |
WO2007/110572
(2007-10-04)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
6 |
초록
▼
A method and apparatus for retarding rotation of at least one wheel, the apparatus including at least one braking member, a latch member secured to the braking member and movable between a first position and a second position, and a latch actuating member arranged to determine the position in which
A method and apparatus for retarding rotation of at least one wheel, the apparatus including at least one braking member, a latch member secured to the braking member and movable between a first position and a second position, and a latch actuating member arranged to determine the position in which the latch member is positioned. The braking member is movable into a braking position in which rotation of the at least one wheel is retarded when the latch member is in the second position.
대표청구항
▼
1. A braking apparatus for braking a wheeled vehicle, comprising: a wheel for engaging a running surface, said wheel including at least one tooth region;at least one braking member associated with the wheel, said braking member being rotatable about a pivot axis between a non-braking position in whi
1. A braking apparatus for braking a wheeled vehicle, comprising: a wheel for engaging a running surface, said wheel including at least one tooth region;at least one braking member associated with the wheel, said braking member being rotatable about a pivot axis between a non-braking position in which the wheel engages the running surface and a braking position in which a brake foot is juxtaposed between the wheel and the running surface;a latch member secured to said braking member and movable between a first position in which said braking member is unlatched and a second position in which said braking member is latched to the tooth region of the wheel for rotation with the wheel into said braking position; anda latch actuating member arranged to interact magnetically with the latch member to determine the position in which said latch member is positioned. 2. The apparatus as claimed in claim 1, further comprising: at least one of said latch member and/or said latch actuating member comprises a magnetic element, magnetic forces generated by said magnetic element determining a position of said latch member. 3. The apparatus as claimed in claim 2, further comprising: when only one of said latch member or said latch actuating member comprises a magnetic element, a remainder of said latch member or said latch actuating member comprises a metal body. 4. The apparatus as claimed in claim 2, further comprising: said latch actuating member comprises a first magnetic element and said latch member comprises a second magnetic element. 5. The apparatus as claimed in claim 4, further comprising: said first magnetic element is arranged to attract said second magnetic element when said latch actuating member is in a braking position, the magnetic force of attraction being sufficient to move the latch member from said first position to said second position. 6. The apparatus as claimed in claim 4, further comprising: said first magnetic element is arranged to repel said second magnetic element when said latch actuating member is in a non-braking position, the magnetic force of repulsion being sufficient to urge the latch member into said first position, said latch member being biased into said second position by a biasing member. 7. The apparatus as claimed in claim 1, wherein: said at least one tooth region is arranged to engage with a leg member of said latch member when said latch member is moved to said second position. 8. The apparatus as claimed in claim 7, wherein: said wheel is arranged to drive the braking member into a braking position when said tooth region is engaged with the leg member and said wheel is rotated. 9. The apparatus as claimed in claim 7, wherein: said at least one tooth region comprises a plurality of recesses arranged circumferentially around an inner surface of said wheel. 10. The apparatus as claimed in claim 1, wherein: said braking member comprises a brake arm member rotatable around an axis of said wheel and having said brake foot disposed at a first end thereof distal said axis. 11. The apparatus as claimed in claim 1, wherein: a drive assembly arranged to drive said latch actuating member thereby selecting a position of said latch actuating member, said drive assembly comprising:at least one solenoid;a plunger orientated along an axis of said solenoid; anda drive pin connecting said plunger to the latch actuating member; whereinmovement of the plunger responsive to energisation of a coil of said solenoid provides a corresponding rotation of said latch actuating member about a respective pivot point. 12. The apparatus as claimed in claim 11, further comprising: said at least one solenoid comprises two solenoids disposed in an opposing arrangement, respective plungers of each solenoid being commonly connected via a connector so as to move together. 13. The apparatus as claimed in claim 1, further comprising: a sensor for receiving wireless lock or unlock signals from a remote transmitter and generating corresponding control signals; andcontrol apparatus responsive to said control signals for energising or non-energising at least one solenoid of a drive assembly. 14. The apparatus as claimed in claim 1, further comprising: a wheel housing including a housing body having a central plate member and oppositely facing housing body walls extending outwardly from opposite sides of the central plate around edge regions of the central plate thereby forming a H-shaped cross section for said housing, opposite sides providing respective compartments in which components of said apparatus are locatable. 15. The apparatus as claimed in claim 1, wherein: the latch member is arranged to pivot about a pivot point, said first and second positions being pivotally spaced apart. 16. The apparatus as claimed in claim 1, wherein: said latch actuating member is an elongate member having a respective pivot axis at a first end thereof and includes a drive shaft coaxial with said pivot axis whereby rotation of the drive shaft provides a pivoting motion of said latch actuating member about the pivot axis. 17. The apparatus as claimed in claim 16, wherein: said elongate member has a second end thereof whereby said second end is located proximate to said latch member when said latch actuating member is pivoted to a first position and said second end is located distal to said latch member when said latch actuating member is pivoted to a second position. 18. The apparatus as claimed in claim 17, further comprising: stopping elements which each includes a latch actuating member abutment surface and located at respective positions with respect to the latch actuating member to prevent further pivoting motion of the latch actuating member beyond said first and second positions. 19. The apparatus as claimed in claim 16, further comprising: drive means for providing rotational forces to said drive shaft, said rotational forces causing said drive shaft to rotate. 20. The apparatus as claimed in claim 1, wherein said latch member is arranged so that gravitational forces cause a mass of the latch member to fall into said first position. 21. A method for braking a wheeled vehicle, comprising the steps of: providing a wheel for engaging a running surface, said wheel including at least one tooth region;providing a braking member that is associated with the wheel, said braking member being rotatable about a pivot axis between a non-braking position in which the wheel engages the running surface and a braking position in which a brake foot is juxtaposed between the wheel and the running surface, to which braking member is secured a latch member, said latch member being movable between a first position in which said braking member is unlatched and a second position in which said braking member is latched to the tooth region of the wheel for rotation therewith;providing a latch actuating member that interacts magnetically with the latch to determine the position thereof, andselecting a position for said latch member via the latch actuating member to control movement of the braking member into the braking position. 22. A method as claimed in claim 21, further comprising the steps of: generating magnetic forces between said latch member and said latch actuating member, said magnetic forces determining a position of said latch member. 23. The method as claimed in claim 22, further comprising the steps of: attracting said latch member into said second position by locating said latch actuating member nearer to said latch member. 24. The method as claimed in claim 22, further comprising the steps of: repelling said latch member into said first position by locating said latch actuating member nearer to said latch member.
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